Succinate as a New Actor in Pluripotency and Early Development?

Area of Science:

• Developmental Biology
• Cellular Metabolism
• Epigenetics

Background:

• Embryonic stem cells (ESCs) exist in distinct pluripotent states (naïve and primed) with unique features.
• Intermediate and 2C-like pluripotent states have been identified, suggesting a continuum of pluripotency.
• Metabolic transitions are characteristic of these pluripotency stages.

Purpose of the Study:

• To propose a novel role for the metabolite succinate in early pluripotency and embryo development.
• To review the intra- and extracellular functions of succinate in the context of developmental biology.

Main Methods:

• Review of existing literature on cellular metabolism, pluripotency, and embryo development.
• Analysis of the biochemical pathways involving succinate.
• Discussion of succinate's interactions with protein modification and signaling pathways.

Main Results:

• Succinate is a key metabolite at the intersection of multiple mitochondrial pathways.
• Succinate can be secreted, modify proteins via succinylation, and inhibit dioxygenases.
• Extracellular succinate signals through the G-Protein Coupled Receptor SUCNR1.

Conclusions:

• Succinate has significant, multifaceted roles in regulating pluripotency and embryonic development.
• Understanding succinate's functions offers new insights into metabolic regulation of early development.